Aho
The general deadline for requesting an extension for the 2023 tax return was 31 March 2024. An extension already granted until 30 September 2024 can be extended again until 30 November 2024 at the latest from August 2024.
On the first page of the tax return, you will find the Personal ID and the Document ID. These are required for requesting an extension of the deadline.
In my experience, it is always a good idea to contact a tax advisor)))